2016-08-15

The factors that affect SF6 gas breakdown voltage are as follows: (1) Uniformity of electric field. The breakdown voltage of SF6 varies greatly in different uniform electric fields. In a uniform electric field, the breakdown voltage of SF6 is larger than that in a highly non-uniform electric field, and this effect is much greater than that of air. (2) SF6 working pressure. Increasing the working pressure of SF6 is one of the ways to increase the breakdown voltage of SF6, but the working press

2016-08-15

1), measuring pipes and joints and other parts of good quality, qualified processing. The measuring pipe is made of stainless steel or polytetrafluoroethylene to keep all parts clean and dry to reduce measurement errors;

2016-07-17

SF6 GasInsulatedTransformer (GIT) is a kind of transformer using SF6 gas as insulation medium and cooling medium, which has excellent performance in fire prevention, safety, electrical reliability and so on. SF6 insulated transformer, capacity 63 M VA, connection group YN d11, with on-load voltage regulator. SF6 transformer transformers are mainly developed in two aspects: one is to the development of ultra-large ultra-high voltage, the other is to energy-saving, miniaturization, low noise, high

2016-07-13

SF6 Leak monitoring and alarm system installation basis: GB/T8905-1996 "Guidelines for Gas Management and Detection in sulfur hexafluoride Electrical Equipment" and DL 408-1991 "Safety Work Regulations for Electrical Industry" (electrical parts of power plants and substations) and "Eighteen Major Anti-accident Measures for Power Grids of the State Grid Corporation" special provisions, The distribution unit room equipped with SF6 equipment must ensure that the SF6 gas concentration is less than 1

2016-07-13

SF6 is not only an important standard to ensure SF6 equipment and personal health, but also an important measure for human beings to care for the earth and protect the earth's environment, which has far-reaching significance.

2016-07-13

1) Qualitative method; The "qualitative method" to find the leakage site means that only the SF6 gas leakage site is determined, but the measurement of leakage speed and leakage cannot be measured. Such as SF6 qualitative leak detector (XP-1A), TIF5750A and other high accuracy, 4.6 g/year very small leakage can also be detected. It is composed of probe, sensor, analysis and processing circuit, sound and light alarm system, etc. The larger the air leakage, the faster the alarm sound and the more